This survey of exercise stress testing programs in the United States concludes that the rapid growth and diversity of these services have created a need for increased communication and cooperation among professionals concerning standards relative to procedures, protocols, and personnel. (Author/MJB)

A multivariate post hoc procedure (the Roy-Bose procedure) which allows for the construction of an infinite number of confidence intervals or probability statements concerning the p variables, all of which hold at a 100(1-a) percent level of confidence, is demonstrated and compared to other procedures. (JD)